Option INTERNAL_MODULE_PPM=YES was broken

radio/src/pulses/pulses.cpp

@@ -319,6 +319,13 @@ static void enablePulsesInternalModule(uint8_t protocol)
       intmoduleTimerStart(MULTIMODULE_PERIOD);
       break;
 #endif
+
+#if defined(INTERNAL_MODULE_PPM)
+    case PROTOCOL_CHANNELS_PPM:
+      intmodulePpmStart();
+      break;
+#endif
+
     default:
       break;
   }

radio/src/pulses/pulses.h

@@ -330,6 +330,7 @@ void sendByteDsm2(uint8_t b);
 void putDsm2Flush();
 void putDsm2SerialBit(uint8_t bit);
 void sendByteSbus(uint8_t b);
+void intmodulePpmStart();
 void intmodulePxx1PulsesStart();
 void intmodulePxx1SerialStart();
 void extmodulePxx1PulsesStart();